Feature Matching

[trabis03]

This is an error in the C++ code. I'd post a bug report with the package author send the same information you pasted here. The error is showing up in a module named color.cpp, class cv, method cvtColor don't know what error -215 is, but it may be in their docs. you might also try a different color, because the bug might be mismanaging the exception

Thank you for the information.